干旱区生态环境知识资源中心(Arid): Site- and species-specific climatic responses of two co-occurring shrubs in the temperate Alxa Desert Plateau, northwest China

Arid

DOI	10.1016/j.scitotenv.2019.02.217
	Site- and species-specific climatic responses of two co-occurring shrubs in the temperate Alxa Desert Plateau, northwest China
	Xiao, Sheng-Chun 1; Ding, Ai-Jun 1,2; Tian, Quan-Yan 1,2; Han, Chao 1,2; Peng, Xiao-Mei 3
通讯作者	Xiao, Sheng-Chun
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	667 页码:77-85
英文摘要	In the context of global precipitation anomalies and climate warming, the evolution of fragile desert ecosystems, which account for one-third of the world's land area, will become more complex. Studies of regional climate change and ecosystem response are important components of global climate change research, especially in arid desert regions. Zygophyllum xanthoxylum and Ammopiptanthus mongolicus are two dominant but endangered shrub species in the Alxa Desert in the arid region of central Asia. Using dendrochronological methods, we studied the response of radial growth of those two species to climate factors, and the adaptability of the two shrub populations under a regional warming trend. We found that radial growth of both shrubs was mainly affected by precipitation during the growing season. In additionally, along with the decrease of precipitation and the increase of temperature from east to west of Alxa desert Plateau, the limiting effect of drought during the growing season on radial growth increased. The climate response characteristics and changes between diy and wet periods exhibited spatial and temporal heterogeneity due to micro-level geomorphological factors. Under a regional climate warming trend, individual growth and population development of the two endangered shrubs will be adversely affected. In areas where these species are naturally distributed, populations will gradually become concentrated in micro-geomorphic regions with better soil moisture conditions, such as low-lying areas in the gullies that develop in alluvial fans. This finding has important scientific significance for understanding the development of the region's dominant shrub populations and protection of these and other endangered plants in arid desert areas. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Desert shrubs Dendroecology Climate-growth relationship Alxa Desert Alxa plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000461676600010
WOS关键词	BADAIN JARAN DESERT ; AMMOPIPTANTHUS-MONGOLICUS ; INNER-MONGOLIA ; TREE-RINGS ; RECONSTRUCTION ; ENVIRONMENTS ; STRATEGIES ; JUYAN ; HELAN ; LINE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218681
作者单位	1.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Sheng-Chun,Ding, Ai-Jun,Tian, Quan-Yan,et al. Site- and species-specific climatic responses of two co-occurring shrubs in the temperate Alxa Desert Plateau, northwest China[J],2019,667:77-85.
APA	Xiao, Sheng-Chun,Ding, Ai-Jun,Tian, Quan-Yan,Han, Chao,&Peng, Xiao-Mei.(2019).Site- and species-specific climatic responses of two co-occurring shrubs in the temperate Alxa Desert Plateau, northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,667,77-85.
MLA	Xiao, Sheng-Chun,et al."Site- and species-specific climatic responses of two co-occurring shrubs in the temperate Alxa Desert Plateau, northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 667(2019):77-85.